Pairwise comparison of the global expression patterns of P. aeruginosa strains between each condition.

*Permutational multivariate analysis of variance (PERMANOVA) on unrestricted permutation of raw data was conducted on the gene expression data after a resemblance-similarity matrix was generated using Euclidean distance.†Pairwise a posteriori tests among conditions using the t statistic.‡As the number of unique values under permutations was very low (possible unique permutations = 10), p-values were obtained using 9999 Monte Carlo (MC) samples from the asymptotic permutation distribution. Otherwise, the p-value could only ever be 0.1 if the total number of possible unique permutations when comparing 3 replicate strains across a pair of conditions was 10. Significance was set at alpha α = 0.05.